Bone mineral density in elite junior olympic weightlifters
The purpose of this study was to examine the relationship of bone mineral density (BMD) to muscular strength in highly trained young male athletes in order to gain insights concerning the influence of heavy resistance training on BMD. Twenty-five elite junior weightlifters (age, 17.4 +/- 1.4 yr) and...
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| Veröffentlicht in: | Medicine and science in sports and exercise 1993-10, Vol.25 (10), p.1103-1109 |
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| creator | CONROY, B. P KRAEMER, W. J MARESH, C. M FLECK, S. J STONE, M. H FRY, A. C MILLER, P. D DALSKY, G. P |
| description | The purpose of this study was to examine the relationship of bone mineral density (BMD) to muscular strength in highly trained young male athletes in order to gain insights concerning the influence of heavy resistance training on BMD. Twenty-five elite junior weightlifters (age, 17.4 +/- 1.4 yr) and 11 age-matched controls (16.9 +/- 1.1 yr) volunteered for this investigation. Measurements of BMD (g.cm-2) utilizing dual energy x-ray absorptiometry were obtained for the lumbar spine (L2-4) and the proximal femur (neck; trochanter, Ward's triangle). The BMD values for the junior lifters were found to be significantly greater at all sites for the junior weightlifters compared with their age-matched control group. The BMD values of the spine and femoral neck of the junior weightlifters when compared with adult reference data (i.e., 20-39 yr old men) were found to be significantly greater. Both simple and multiple regression analyses demonstrated significant relationships of BMD with strength accounting for 30-65% of the variance. These data suggest that in elite junior weightlifters, muscle strength, highly specific to the sport of weightlifting, has a major influence on BMD due to the influence of the chronic overloads experienced in training. |
| doi_str_mv | 10.1249/00005768-199310000-00004 |
| format | Article |
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P ; KRAEMER, W. J ; MARESH, C. M ; FLECK, S. J ; STONE, M. H ; FRY, A. C ; MILLER, P. D ; DALSKY, G. P</creator><creatorcontrib>CONROY, B. P ; KRAEMER, W. J ; MARESH, C. M ; FLECK, S. J ; STONE, M. H ; FRY, A. C ; MILLER, P. D ; DALSKY, G. P</creatorcontrib><description>The purpose of this study was to examine the relationship of bone mineral density (BMD) to muscular strength in highly trained young male athletes in order to gain insights concerning the influence of heavy resistance training on BMD. Twenty-five elite junior weightlifters (age, 17.4 +/- 1.4 yr) and 11 age-matched controls (16.9 +/- 1.1 yr) volunteered for this investigation. Measurements of BMD (g.cm-2) utilizing dual energy x-ray absorptiometry were obtained for the lumbar spine (L2-4) and the proximal femur (neck; trochanter, Ward's triangle). The BMD values for the junior lifters were found to be significantly greater at all sites for the junior weightlifters compared with their age-matched control group. The BMD values of the spine and femoral neck of the junior weightlifters when compared with adult reference data (i.e., 20-39 yr old men) were found to be significantly greater. Both simple and multiple regression analyses demonstrated significant relationships of BMD with strength accounting for 30-65% of the variance. These data suggest that in elite junior weightlifters, muscle strength, highly specific to the sport of weightlifting, has a major influence on BMD due to the influence of the chronic overloads experienced in training.</description><identifier>ISSN: 0195-9131</identifier><identifier>EISSN: 1530-0315</identifier><identifier>DOI: 10.1249/00005768-199310000-00004</identifier><identifier>PMID: 8231753</identifier><identifier>CODEN: MSPEDA</identifier><language>eng</language><publisher>Hagerstown, MD: Lippincott Williams & Wilkins</publisher><subject>Absorptiometry, Photon ; Adipose Tissue ; Adolescent ; Adult ; Analysis of Variance ; Biological and medical sciences ; Body Composition ; Body Mass Index ; Bone Density ; Femur - physiology ; Fundamental and applied biological sciences. Psychology ; Humans ; Lumbar Vertebrae - physiology ; Male ; Muscles - physiology ; Physical Education and Training ; Regression Analysis ; Skinfold Thickness ; Space life sciences ; Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports ; Weight Lifting - physiology</subject><ispartof>Medicine and science in sports and exercise, 1993-10, Vol.25 (10), p.1103-1109</ispartof><rights>1994 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c418t-ebf0cb345205810cdde28e093397280507c66cac71c80a8e375277452f776dcc3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3922544$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/8231753$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>CONROY, B. P</creatorcontrib><creatorcontrib>KRAEMER, W. J</creatorcontrib><creatorcontrib>MARESH, C. M</creatorcontrib><creatorcontrib>FLECK, S. J</creatorcontrib><creatorcontrib>STONE, M. H</creatorcontrib><creatorcontrib>FRY, A. C</creatorcontrib><creatorcontrib>MILLER, P. D</creatorcontrib><creatorcontrib>DALSKY, G. P</creatorcontrib><title>Bone mineral density in elite junior olympic weightlifters</title><title>Medicine and science in sports and exercise</title><addtitle>Med Sci Sports Exerc</addtitle><description>The purpose of this study was to examine the relationship of bone mineral density (BMD) to muscular strength in highly trained young male athletes in order to gain insights concerning the influence of heavy resistance training on BMD. Twenty-five elite junior weightlifters (age, 17.4 +/- 1.4 yr) and 11 age-matched controls (16.9 +/- 1.1 yr) volunteered for this investigation. Measurements of BMD (g.cm-2) utilizing dual energy x-ray absorptiometry were obtained for the lumbar spine (L2-4) and the proximal femur (neck; trochanter, Ward's triangle). The BMD values for the junior lifters were found to be significantly greater at all sites for the junior weightlifters compared with their age-matched control group. The BMD values of the spine and femoral neck of the junior weightlifters when compared with adult reference data (i.e., 20-39 yr old men) were found to be significantly greater. Both simple and multiple regression analyses demonstrated significant relationships of BMD with strength accounting for 30-65% of the variance. These data suggest that in elite junior weightlifters, muscle strength, highly specific to the sport of weightlifting, has a major influence on BMD due to the influence of the chronic overloads experienced in training.</description><subject>Absorptiometry, Photon</subject><subject>Adipose Tissue</subject><subject>Adolescent</subject><subject>Adult</subject><subject>Analysis of Variance</subject><subject>Biological and medical sciences</subject><subject>Body Composition</subject><subject>Body Mass Index</subject><subject>Bone Density</subject><subject>Femur - physiology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Humans</subject><subject>Lumbar Vertebrae - physiology</subject><subject>Male</subject><subject>Muscles - physiology</subject><subject>Physical Education and Training</subject><subject>Regression Analysis</subject><subject>Skinfold Thickness</subject><subject>Space life sciences</subject><subject>Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports</subject><subject>Weight Lifting - physiology</subject><issn>0195-9131</issn><issn>1530-0315</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kE1PwzAMhiMEGmPwE5ByQNwK-WiahBtMfEmTuMC5ylIXMqXtSFqh_XtSVuaDLduPbflFCFNyQ1mub0kyIQuVUa05HbNsdPkRmlPBU8KpOEZzQrXINOX0FJ3FuEmE5JzO0EwxTqXgc3T30LWAG9dCMB5X0EbX77BrMXjXA94MresC7vyu2TqLf8B9fvXe1T2EeI5OauMjXExxgT6eHt-XL9nq7fl1eb_KbE5Vn8G6JnbNc8GIUJTYqgKmgGjOtWSKCCJtUVhjJbWKGAVcCiZlwmspi8pavkDX-73b0H0PEPuycdGC96aFboilLIhIP6oEqj1oQxdjgLrcBteYsCspKUfZyn_ZyoNsf6U8jV5ON4Z1A9VhcNIp9a-mvonW-DqY1rp4wLhmTOQ5_wXaRHOa</recordid><startdate>19931001</startdate><enddate>19931001</enddate><creator>CONROY, B. P</creator><creator>KRAEMER, W. J</creator><creator>MARESH, C. M</creator><creator>FLECK, S. J</creator><creator>STONE, M. H</creator><creator>FRY, A. C</creator><creator>MILLER, P. D</creator><creator>DALSKY, G. P</creator><general>Lippincott Williams & Wilkins</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19931001</creationdate><title>Bone mineral density in elite junior olympic weightlifters</title><author>CONROY, B. P ; KRAEMER, W. J ; MARESH, C. M ; FLECK, S. J ; STONE, M. H ; FRY, A. C ; MILLER, P. D ; DALSKY, G. 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Swimming. Physical exercise. Rest. Sports</topic><topic>Weight Lifting - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>CONROY, B. P</creatorcontrib><creatorcontrib>KRAEMER, W. J</creatorcontrib><creatorcontrib>MARESH, C. M</creatorcontrib><creatorcontrib>FLECK, S. J</creatorcontrib><creatorcontrib>STONE, M. H</creatorcontrib><creatorcontrib>FRY, A. C</creatorcontrib><creatorcontrib>MILLER, P. D</creatorcontrib><creatorcontrib>DALSKY, G. 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P</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Bone mineral density in elite junior olympic weightlifters</atitle><jtitle>Medicine and science in sports and exercise</jtitle><addtitle>Med Sci Sports Exerc</addtitle><date>1993-10-01</date><risdate>1993</risdate><volume>25</volume><issue>10</issue><spage>1103</spage><epage>1109</epage><pages>1103-1109</pages><issn>0195-9131</issn><eissn>1530-0315</eissn><coden>MSPEDA</coden><abstract>The purpose of this study was to examine the relationship of bone mineral density (BMD) to muscular strength in highly trained young male athletes in order to gain insights concerning the influence of heavy resistance training on BMD. Twenty-five elite junior weightlifters (age, 17.4 +/- 1.4 yr) and 11 age-matched controls (16.9 +/- 1.1 yr) volunteered for this investigation. Measurements of BMD (g.cm-2) utilizing dual energy x-ray absorptiometry were obtained for the lumbar spine (L2-4) and the proximal femur (neck; trochanter, Ward's triangle). The BMD values for the junior lifters were found to be significantly greater at all sites for the junior weightlifters compared with their age-matched control group. The BMD values of the spine and femoral neck of the junior weightlifters when compared with adult reference data (i.e., 20-39 yr old men) were found to be significantly greater. Both simple and multiple regression analyses demonstrated significant relationships of BMD with strength accounting for 30-65% of the variance. These data suggest that in elite junior weightlifters, muscle strength, highly specific to the sport of weightlifting, has a major influence on BMD due to the influence of the chronic overloads experienced in training.</abstract><cop>Hagerstown, MD</cop><pub>Lippincott Williams & Wilkins</pub><pmid>8231753</pmid><doi>10.1249/00005768-199310000-00004</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Medicine and science in sports and exercise, 1993-10, Vol.25 (10), p.1103-1109 |
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| language | eng |
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| source | Journals@Ovid Ovid Autoload; MEDLINE; Journals@Ovid LWW Legacy Archive |
| subjects | Absorptiometry, Photon Adipose Tissue Adolescent Adult Analysis of Variance Biological and medical sciences Body Composition Body Mass Index Bone Density Femur - physiology Fundamental and applied biological sciences. Psychology Humans Lumbar Vertebrae - physiology Male Muscles - physiology Physical Education and Training Regression Analysis Skinfold Thickness Space life sciences Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports Weight Lifting - physiology |
| title | Bone mineral density in elite junior olympic weightlifters |
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